Print fades drastically on the left 2 inches or so of the page. Have tried replacing the fuser and the toner. Printer is at 523000 pages. This happened about 2 and a half years ago, but I wasn't here when the tech fixed it. Thanks in advance.
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I tried the transfer roller from another printer that's working fine. The optics look good. I also tried cleaning the electrical contacts. Nothing has changed it at all.
Might be time to replace the scanner assembly. Can you swap scanner assemblies from a working printer to see if the problem disappears? PartsNow has them for $185.
Replacing the scanner module fixed the problem. Cleaning the mirror helped the scanner module, but did not entirely fix it. I'm ordering a scanner module.